Image is for illustration only and should not be relied upon Horstmann HRFS1 (RFT1) (T50) Wireless Programmamable Thermostat

Horstmann HRFS1 (RFT1) (T50) Wireless Programmamable Thermostat

£29.99 £54.17
Ex VAT: £24.99
HCO Code: 21B12
Availability:  In Stock

Control Centre: - Can be placed anywhere in the home to detect and control the temperature of an area of the user’s choice. Not limited by power control wiring locations.

  • Link with the Receiver via R F. Control distance 60M open site
  • LCD shows the "need to know" information only, which is easier to understand.
  • Real time clock with day of the week display
  • Room temperature display
  • Programme set-point display - Simplified temperature adjustment - Simplified programming procedure
  • Default factory preset programme from start up or reset
  • 5-2 or 7 day programming
  • Frost Protection pre set at 5˚C
  • Temporary override set-temperature
  • User selectable temperature span
  • User selectable heater/cooler operation mode
  • Battery level detection
  • 2 AA size alkaline batterie s
  • Slim housing design
  • EL backlight

    Receiver: - Linked with Control Centre via RF .

  • Power control rating 230V AC up to 16A resistive .
  • Powered by line voltage only. No battery required.
  • Two L E D indicators for power and output status.

Write a review

Note: HTML is not translated!
    Bad           Good
Hi I have a towerstat rf wireless digital controller and reciver, the controller has broken .can I just buy a new controller and pare up with the old reciver thanks for any help
Hi.  You will need to change the receiver as well.

How do you switch the controls from 5/2 day week settings to the 7 days a week programmable mode?? It's not mentioned in the guide at all and simply won't let me programme individual days
DIP Switch number 4 should be in the down position.  You will need to press reset after making the change.

Is there any way of simply turning all of the radiators on in the house and also turning all of the radiators off?
You can press the frost button to put it into frost mode.  It will only then come on if there is a risk of the pipes freezing.

There isn't a mode for permanently on
Can you use a different control unit to turn the temp up and down manually
No. You would need to change the receiver as well.
Where can I download this manual?
Under the downloads tab.
When I set My programmer (manually or timed) to off but my boiler will continue to stay on until the temperature on the Horstmann is reached ?
It is likely the programmer has been overridden to avoid it clashing with the programmable thermostat. Programming must be done on the thermostat.
Can we get a replacement control unit? We’ve just moved home and the system seems to work on pre-set but the hand controls are broken.
I'm afraid it is only available as a pair.
We've recently had a new oil boiler installed and we have a problem with the thermostat. We have the day temp set at 22.5°C with a 0.5°C differential, so the boiler should come on at 22°C and knock off at 23°C, but it isn't knocking off until it reaches 25.5°C. I've tried moving the thermostat closer to the boiler but it doesn't make any difference. The batteries are new, I've reset and reprogrammed the thermostat but nothing seems to make a difference, could it be a problem with the boiler controls?
Check to see what the thermostat thinks the ambient temperature is. Check to see if the symbol on the display matches the light on the receiver. Support is available on 01962 826213
How do I remove the back to change the battery ?
You can press in the tab on the top with a small screwdriver. It will then hinge down.
Is this offer for thermostat and receiver together?
Yes it is.
When I put the temp lower than the room the red light comes on like it should then if I put the temp above the room temp the green light comes on but the boiler does not fire up. So I think all is good with the horseman but for some reason the boiler is not firing up. It was working fine for weeks but has just stopped for some reason. If I put the heating on at the boiler it comes on no problem, could it be he batteries that need changing even though the low bat symbol has not come on.
I'm not sure what you mean by "put the heating on at the boiler". It won't be an issue with the batteries as the receiver light is changing. If one is installed, it could be a motorised valve issue. It sounds like it needs on site investigation by an engineer.
Will my T50 connect with Alexa?
I'm afraid not.
Hi My heating is not turning off when I’m putting the heating temperature down it still is on..
Hi Check for the call symbol on the display. Check for the light on the receiver.
Thermostat is fixed to the wall - how do I change the batteries?
You will need to insert a toothpick or similar into the round hole at the top. This will push a clip down to release the top. It will then hinge down exposing the batteries.
I'm having trouble with the thermostat as when the brain is wired up to the boiler both led lights are showing however when adjusting the temperature on the thermostat the boiler does not kick up and start when I call for heat any ideas. It's as if it's not paired
One LED on the receiver should come on and off depending on the calling status of the thermostat. If it is not, make sure that the RF addresses on both units match. Try different addresses to the factory default in case of interference.
I have already purchased one of these from you was just wondering if it can be used manually without setting timer, if so how please Thanks
It does not have a manual mode.
Hi I have the same horseman thermostat but the control panel has stoped working, I have tried new batteries but still no power. I was wondering if: 1. can I buy the control panel on its own, or does it have to be in a pair with the receiver. 2. Would I be ok to leave the existing receiver connected to the boiler and connect to a new control panel ? Thank You
The control panel is not available separately. These is no need to change the receiver, just make sure the DIP switches on the new one match that of the old.
Can you preserve your own times and temperatures when you have to change the batteries I.e. does switching off, changing batteries then pressing reset then switching back on achieve this ? It is not a quick job to reprogram so I would like to avoid this if possible. Thank you .
As long as you change the batteries before they are empty - and put the new ones in immediately after removing the old ones - you will not need to re-program it.
We recently moved house and have a horstmann thermostat. We turned the radiators off when platsering etc. We have now turned back on in the attic, so now water and heating are both on but it is not coming on. I don’t know what I need to be pressing on the thermostat (previous owner did not leave a user guide) ! We have a baby due soon and the house is freezing. The temp will not go up when I’m pressing the up button, there is no green light in the bottom corner. It’s letting me set the time etc but that’s it. Please help!x
Please call support on 01962 826213.
We have just moved into a property that has one that looks very similar, no instructions, can I get a user guide from you please?
A manual is available under the downloads tab.
I have a boiler that provides heating to a number of radiators and a separately controlled underfloor heating system of that. At present it uses a simple temperature sensor. Electrically the RF1 receiver appears compatible. Can I replace the underfloor controller with a separate RFT1 receiver so it operates whenever the boiler does? If so can I buy the receiver separately?
Sometimes the neutral needed by the receiver is not connected. If you let us know the make/model of the one you are replacing we can check. The receiver is not available separately.
I have the same hortsmann T50 illustrated but I cannot reduce the temperature manually when it gets too hot and the boiler keeps heating up. Is the thermostat broken and need replacing? Will l need to change the receiver on the wall?
If the light goes off on the receiver, then it is possible that the fault lies elsewhere and needs investigating. If the light stays on, then the problem will be with the thermostat.
We have a T50 RF programmable Horstmann. Unfortunately someone has stood on the transmitter and broken the screen. The unit still works. (It looks like the one on the picture) Is this a suitable replacement and do I have to change the receiver (up, near the boiler) as well? Many thanks, Terri.
If it looks the same, then it will be suitable. You will not need to replace the receiver, just make the DIP switches on the new unit match the ones on the old one.
I have a Horstmann C-stat17B unit controlling my heating system. It works fine but it's in the wrong position. (near a door, near the kitchen and too close to the radiator) No possibility to re-locate it so am looking for a wireless thermostat, putting the sender unit where the C17B is now and placing the wirelss unit in a better place...or wherever I want it. Would the Horstman HRFS1 do the trick or can you suggest an alternative. Many thanks
Unfortunately the connections to the Cstat17-B are not sufficient for a wireless receiver. You will need to install the receiver near the boiler or in the airing cupboard (depending on your system).
If I bought the HRFS1 with or without the receiver, would I be able to fit the transmitter only. ie. would it work with the original receiver?
Yes, you can get the new transmitter to talk to the old receiver as long as they have the same model number.
Hi, I have set the temperature at 21 and the display is going no higher than 18 . Do I need to reset it
Hi. Give support a call on 01962 826213. They will do some checks.
Hi. How do I change the day and time on thermostat?
Press and hold SET and SELECT in Normal mode for 3 seconds to enter Clock setting mode. • Clock, Day-of-Week, and "SET" are displayed. All other indicators are cleared. "Hour" is flashing to indicate that it is the selected item to be adjusted. • Release SELECT, press up or down to increase or decrease the "hour" respectively. • Press and release SELECT, press up or down to increase or decrease the "minute" respectively. • Press and release SELECT, press up or down to cycle the Day of Week from "M" to "SU". • Press and release SELECT to allow change of "hour" again. • Press SET at any time to confirm the setting and return to normal mode. • Thermostat will return to normal mode if no key pressed for 15 seconds, Clock is also updated with the latest setting
I have a Horstmann HRFSI Thermostat .. which has developed a fault It will not switch off the pump when temp is reached not a comms problem have tried with thermostat next to the receiver I have to switch receiver off and then on again for it to operate normally but then the same problem.No problem switching on just will not switch off. Happy to buy a new set from you if that will fix problem ..but want to fix if poss Thanks Maurice
You can call support on 01962 826213, but I don't think a fix is likely.
Hello I have fitted an RFT1 system to my boiler. The receiver doesn't switch off (green led stays on) when the set temperature is reached (21deg) and the revolving fan disappears. If I set a lower temperature, then a higher temperature, i.e. 25 deg, the revolving fan appears. I then set a lower temp, i.e. 18 deg, the revolving fan disappears and the receiver switches off I then reset the required temperature to 21 deg. When the thermostat switches the receiver on, the whole process repeats. Any suggestions please Regards.
Hi. It sounds like there are communication issues. Try moving it to a location nearer the receiver.
Would this work with a morco gb24 series 2 combi
Yes it would.
I have Horstmann HRFS1 but the buttons are playing up, how easy is it to install a new one, can I do it or do I need an heating engineer to do it
It is very easy as you can set it to work with the existing receiver. Just change the code switches on the new thermostat so they match the old one.
Hi, Finally sussed our how to programme the T50 thermostat, but the minimum temperature will not set below 10 degrees. Is this preset or can you reset to a lower temperature???
Hi. No, you cannot programme a temperature below 10C.
Hi. How do I override the settings to put the heating on during the day? Thanks
Hi In the normal operation mode, the current set temperature can be overriden by pressing the UP or DOWN button. When in override, the new set temperature will be displayed with the HAND icon on and both the CONF and ECON icons off.
Hi Once you have set your programs could you tell me how long heating is on for before going off.
Hi. It is on until the set temperature is reached.
The clocks have just gone back, how to I change the clock please
• Press and hold SET and SELECT in Normal mode for 3 seconds to enter Clock setting mode. • Clock, Day-of-Week, and "SET" are displayed. All other indicators are cleared. "Hour" is flashing to indicate that it is the selected item to be adjusted • Release SELECT, press up or down to increase or decrease the "hour" respectively. • Press SET to confirm the setting and return to normal mode. • Thermostat will return to normal mode if no key pressed for 15 seconds.
Hi, when setting the programs up if I want the heating to switch off when it reaches say 20' , what do I set the set point at ?
Hi. If you want it to heat to and maintain 20C, then set it to 20C.
Is this compatible with a baxi combi 105he? Is the install easy? Thanks
Yes it is. You just run a 4-core cable between boiler and receiver. So a fairly simple fit.
the green light on the power control unit will not come on, therefore no central heating, any ideas on how to fix this? turned everything on and off, wireless transmitter box working ok.
There is a manual override under the cover. Check to see if this is working.
Hi My LCD screen is not displaying properly and it is very difficult to read the display. The battery icon is reading low (hence the above issue). However I have replaced the batteries and the fault still occurs and the battery icon is still low. Could you please advise. Many thanks.
Hi Double check the new batteries are good. If they are, reset the thermostat by pressing the small reset button on the front with a pin.
I have changed the batteries in my portable control. Can you please tell me how to switch the controls back on
If it doesn't come back on straight away, then press the reset button with a pin.
The system is ignoring instructions from the control unit- it won't switch on/off at the time points set. Also, although the heating is on, the revolving symbol is not shown. Can you suggest a solution please.
If the receiver light is going on/off as expected, then check the motorised valve. If not, then change the channel it is broadcasting on.
Is this the price for both the thermostat and the reciever together? thanks Simon
Yes it is.
We have a shared office two separate floors without access to each other sharing one boiler. We have a Hortsmann HRFS1 in the ground floor and working. Would it be possible to add a second so the first floor so the other occupier could increase the boiler operation times if they were working late etc?
Yes, as long as you have the suitable zone valves to separate out the flow to the two floors.
I need to change the batteries in the controller but I don’t understand the manual!? Can someone help. Where is the reset button?
Give support a call on 01179 788 773. They will talk you through it.
how do i turn off the rf programmable room stat when i go on holliday?
Just press the FROST button.
Recently purchased this thermostat. I think my unit is working the opposite way it should. When I move the set point temp below the room temp the heating comes on and when I turn it up it goes off. I know it can be used as a cooler but reading the manual I’m sure I’ve made the adjustments so as it’s working as a heater. Can you help
If the light on the receiver is on when the heating is off (and vice versa), then the receiver is wired wrong (wired to SL off instead of SL on).
can I change the frost protection temperature setting from 5 degrees to 15 degrees
It cannot be changed.
I have a horstmann thermostat and controller fitted to my combi boiler similar to this one. They both work fine but the display on the thermostat is faulty. Can I purchase this ( understand I need to purchase both items) and pair the new thermostat with the existing controller wired to the boiler.
Yes you can.
We have recently moved into our property, it has an HRFS1 installed. 2 Questions, 1, Where is the receiver likely to be located ? 2, How do I access the DIP switches on the transmitter and receiver ?
If you have a combi boiler, then it will normally be installed next to the boiler. If you have a traditional system with a hot water cylinder, then it will normally be in the airing cupboard. You will need to remove the cover to access the DIP switch. For the receiver you will need to switch off the electric before you do.
Can you please help me, I don’t know how to switch on my heaters with horstmann Can you send me please some instructions Thank you Floriana
A manual is available under the downloads tab.
Hi there I want to have no timer settings and just use the thermostat manually and turn up and down when I want but I can't see to work out how to do this please can someone help
Hi. I'm afraid this thermostat doesn't have a manual mode. I can only suggest setting all the time/temperature programs to happen early in the morning, then you can use the temporary over ride during the day.
How do I link them together
There are DIP switches on both thermostat and receiver. You must make sure they are set the same.
Hello, I understand that you set the temperature with this thermostat and not an on off time period. However I am confused by the 5 programme settings. Does each programme run for a specific period of time eg 1 hour? I want to have the heating on from 6am to 7am and then from 6pm to 10pm at 19* every day. Can you advise how I should programme each of the 5 daily programmes to achieve this please. Many thanks for your time.
It runs until the next setting. You set: 1) 6am 21C 2) 7am 5C 3) 6pm 21C 4) 10pm 5C 5) 10pm 5C
Does th hrsf1 come with a stand for freestanding on a shelf etc .
Yes it does.
Can you please send me by email the instructions to the thermostat above T50 which I bought, as I have lost the instructions. Many thanks, B Butcher
You can download it from the "Downloads" tab.
Hi How do i adjust the temperature on the thermostat, I couldn't understand it on the manual
To adjust it temporarily, just use the up arrow button. It will go back to programmed setting on the next time/temperature change (or you can use SET button to cancel it).
Please can you tell me if there is a manual override setting which is constant?
I'm afraid not.
how do I know when my heater is working. doers the unit show any displays to show it is working? thank you
There is a symbol on the display, and a LED light on the receiver, when the heating is on.
Is the HRFS1 a direct replacement for a Horstmann CS17, that is to say will it fit on the CS17 base without any wiring changes?
I'm afraid not.
Could you please tell me how to change the time. I would be very grateful. Thank you.
Please see pages 16 and 17 of the manual (downloads tab).
I currently have this controller installed on my boiler. The numbers (temperature figures) are starting to disappear, what do I do. If I need to replace the unit can I just replace the display box on the wall or do I have to also change the box attached to the boiler.
Try changing the batteries. If that doesn't help, then you will probably need to change it. Although they are only sold as pairs, you can set the new controller to work with your existing receiver.
Can you please tell me how to do a reset...we have inherited one with settings all over the place ..its so complicated to reprogramme ...its beaten us after 2 days of trying
There is a reset button on the bottom left. You will need a pin or similar to press it.
Is it possible to programme both a START and a FINISH time for each day?
You programme temperatures instead of on and offs, so you could programme (for example) 20C in the morning and 5C in the evening.
Hi if it's not possible to turn this ch programmer off (off mode) how do I turn it off in summer?
You use the frost protection mode in the Summer.
the last tennants have disposed the instructions !and i dont know how to use it
You can download it from the downloads tab.
Is there a way to completely disable the programmes on this thing? Mine has several times set from previous owners all I can do is edit the programmes but want to turn it off and use it just when I want to by setting the temperature. Thanks.
I'm afraid it doesn't have a manual mode.
Hi, Is it possible to use 2 thermostat on 1 receiver? Also, could you kindly please point me to where I can download these instructions to attach an additional thermostat as my plumber/installer has disposed of the manuals etc. Thanks Duc
I'm afraid not. The receiver will listen to only one thermostat. You will need to install a second receiver.
I have this product but the wireless controller is broken, if I get a replacement controller will it sync automatically?
You will need to change the address code switches on the new one to match the old one. They will then work together. Details are included in the installation manual.
I have an existing HRFS1 programmable room stat controlling my heating but I am hoping I can add another receiver paired to my existing thermostat to control some underfloor heating as well, would 1 thermostat control 2 receivers? And if so can I buy an additional HRFS1 receiver?
It will control multiple receivers, but they are not available separately.
Can this be used on a boiler with a hot water tank?
As long as there is 2 x 2-Port or 1 x 3-Port motorised valves. This will not control hot water, a separate control is needed for hot water.
Is this stable to control a 2.75 kw electric radiator?
Yes it is.
Can two separate stats be used within the same building to control two separate zones within the building
Yes they can.
Good morning, I have a Horstmann RF programmable room thermostat with the number inside the receiver T50. could you please tell me if the HRFS1 ( which looks the same ) is the replacement and I do not have to change the wiring inside the receiver. Many thanks for your time PJH
I'm afraid that is not the model number. Please email us a photo to sales@heatingcontrolsonline.co.uk and we will identify it.
Hi, can the controller be purchased on it's own?
I'm afraid not.
Hello. Can the receiver be purchased on its own?
I'm afraid it is only available as a pair.

Ask a question

Note: HTML is not translated!